CVE-2018-11091 Explained : Impact and Mitigation

A security flaw in the MyBiz MyProcureNet 5.0.0 system allows unauthorized individuals to upload harmful files to the webserver by manipulating parameters. This loophole can lead to the execution of unauthorized commands and potential server takeover.

Understanding CVE-2018-11091

This CVE involves a vulnerability in the MyBiz MyProcureNet 5.0.0 system that enables the upload of malicious files, posing a significant security risk.

What is CVE-2018-11091?

The vulnerability allows attackers to upload harmful files to the webserver.
Attackers can exploit the "HiddenFieldControlCustomWhiteListedExtensions" parameter to include unauthorized file extensions during the upload process.
By adding malicious file extensions, attackers can execute unauthorized commands and potentially take over the server.

The Impact of CVE-2018-11091

Unauthorized individuals can compromise the server's security by uploading malicious files.
Attackers can exploit this vulnerability to execute unauthorized commands and potentially gain control over the server.

Technical Details of CVE-2018-11091

This section provides more in-depth technical details about the CVE.

Vulnerability Description

Attackers can upload harmful files by manipulating the "HiddenFieldControlCustomWhiteListedExtensions" parameter.
The server may accept malicious files as legitimate, allowing for the execution of unauthorized commands.

Affected Systems and Versions

MyBiz MyProcureNet 5.0.0 system is affected by this vulnerability.

Exploitation Mechanism

Attackers exploit the ability to modify the parameter that controls file extensions during the upload process.
By adding unauthorized extensions, attackers can upload malicious files.

Mitigation and Prevention

Protecting systems from CVE-2018-11091 requires immediate actions and long-term security practices.

Immediate Steps to Take

Implement strict file upload restrictions and validate file extensions.
Regularly monitor and audit file uploads to detect any suspicious activity.
Apply security patches and updates provided by the vendor.

Long-Term Security Practices

Conduct regular security training for employees to raise awareness of file upload risks.
Employ intrusion detection systems to identify and block malicious file uploads.

Patching and Updates

Stay informed about security advisories and updates related to MyBiz MyProcureNet to apply patches promptly.